as a source of replacing our present copper wire." (Hecnt)
             British physicist John Tyndall in 1870, discovered that light could be bent. He observed that when water ran out a hole on the side of a rain barrel, the water transmitted the light out as well. Alexander Graham Bell, in 1880, took these concepts and invented the photo phone. This transmitted voice signals on beams of light.
             This didn't work too well, because there were too many things that interfered with the light beam. It wasn't until 1970 scientists at Corning Glass Works & Bell Telephone Labs, formed important breakthroughs in optical fiber.
             A single fiber optic has three major parts. Th
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